Results 61 to 70 of about 96,191 (265)

Polar Lattice‐Distorted Motifs Enable Synergy of Local Polarization/Dipole Fields for Concurrent Glyphosate Wastewater Remediation and CO Evolution

open access: yesAdvanced Science, EarlyView.
Photocatalytic treatment of glyphosate herbicide in agricultural wastewater is achieved through the cooperative effect of the local polarization field and dipole field mediated by lattice‐distorted carbon nitride. Glyphosate is completely degraded via selective C─P bond cleavage with a CO evolution rate of 1166 µmol g−1 h−1.
Daoping Chen   +7 more
wiley   +1 more source

Effect of the isotiazole adjuvants in combination with cisplatin in chemotherapy of neuroepithelial tumors: experimental results and modeling

open access: yesScientific Reports, 2023
Chemotherapy is one of the main treatment options for cancer, but it is usually accompanied with negative side effects. The classical drugs combination with synergistic adjuvants can be the solution to this problem, allowing reducing therapeutic dose ...
Vladimir Potkin   +9 more
doaj   +1 more source

Microreactors and other technologies for direct fluorination [PDF]

open access: yes, 2002
Quinoline/ 2H-chromen-2-one and derivatives thereof, have been found to undergo electrophilic substitution by elemental fluorine in concentrated sulfuric acid as reaction medium.
Holling, Darren
core  

Cobalt/Photoredox Catalyzed Desymmetrization of Oxo and Azabicycles via Asymmetric Reductive Coupling With Alkynes

open access: yesAdvanced Science, EarlyView.
A one‐step, asymmetric reductive coupling of alkynes and oxa‐ and aza‐bicyclic olefins using a cobalt/photoredox catalytic system through desymmetrization. ABSTRACT Bicyclo[2.2.1]heptane frameworks represent a privileged structural motif prevalent in numerous natural products and bioactive molecules.
Subhankar Pradhan   +5 more
wiley   +1 more source

Studies of novel nitro-substituted nitrogen heterocyclic compounds

open access: yes, 2001
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.The novel candidate high energy insensitive explosive; 2,5-diamino-3,6-dinitropyrazine (ANPZ-i) has been prepared in acceptable overall yield.
Philbin, Simon, Philbin, Simon Patrick
core  

Organic thionitroso compounds [PDF]

open access: yes, 1989
A series of novel N-substituted phthalimide-2-sulplienamides was prepared. The N-aryl analogues were shown to be efficient precursors to thionitrosoarenes.
Taylor, Paul
core  

Covalent Bonds Reinforced Strength and Modulus of Heterocyclic Aramid Fiber by Interfacial Aminated‐MXene Nanosheets

open access: yesAdvanced Science, EarlyView.
We demonstrate the covalent bonds strategy to enhance the mechanical property of PBIA fiber by using interfacial MXene‐NH2 nanosheets. The MXene‐NH2 nanosheets with reactive amino sites that can serve as nucleating agents and chain anchors to enhance orientation, crystallinity and interchain interaction of PBIA fiber via strong interfacial amido ...
Boyuan Chen   +7 more
wiley   +1 more source

Nano ordered polyacrylonitrile-grafted chitosan as a robust biopolymeric catalyst for efficient synthesis of highly substituted pyrrole derivatives

open access: yesScientific Reports
A novel heterogeneous nanocatalyst was developed using chitosan, as a natural polysaccharide derived from crustacean shells, and its in-situ grafting by polyacrylonitrile to afford nano ordered polyacrylonitrile-modified chitosan (CS-g-PAN). The obtained
Mahsa Zohrehvand   +3 more
doaj   +1 more source

Síntese de derivados heterocíclicos com potencial atividade antitripanossomatídeos [PDF]

open access: yes, 2014
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde, Programa de Pós-Graduação em Farmácia, Florianópolis, 2014.Os fármacos utilizados nos tratamentos atuais de tripanossomatídeos, Trypanosoma cruzi (doença de ...
Zimmermann, Lara Almida
core  

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